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  <a name="SAP_HANA_0025"></a><a name="SAP_HANA_0025"></a>
  <h1 class="topictitle1">步骤5：执行备份</h1>
  <div>
   <p id="SAP_HANA_0025__p94734405562">执行备份前将需要保护的资源关联到指定SLA策略，系统将对这些资源按照SLA策略进行保护，并根据SLA策略周期性自动执行备份任务。如需立即执行一次备份任务时，可以通过手动备份实现。</p>
   <div class="section" id="SAP_HANA_0025__section333619541437">
    <h4 class="sectiontitle">背景信息</h4>
    <ul id="SAP_HANA_0025__ul18727123312225">
     <li id="SAP_HANA_0025__li147271733132211">手动备份时，SLA中定义的参数（<span class="uicontrol" id="SAP_HANA_0025__uicontrol205534565715">“失败后自动重试”</span>除外），如“限速策略”、<span class="uicontrol" id="SAP_HANA_0025__uicontrol165574519571">“源端重删”</span>、<span class="uicontrol" id="SAP_HANA_0025__uicontrol65519452576">“任务失败告警”</span>会应用到手动备份任务中。</li>
     <li id="SAP_HANA_0025__li653882315253">手动备份产生的副本保留时长按照SLA中定义的保留时长进行保留。<p id="SAP_HANA_0025__p2039811446538"><a name="SAP_HANA_0025__li653882315253"></a><a name="li653882315253"></a>如果手动备份时选择的保护策略未在SLA中定义，则产生的备份副本保留时长为永久保留。如SLA中未定义永久增量（合成全量）备份，而手动备份时选择的是永久增量（合成全量）备份，则本次手动永久增量（合成全量）备份产生的副本保留时长为永久保留。</p></li>
     <li id="SAP_HANA_0025__li336125611415">如果SLA定义了复制策略或归档策略，则执行手动备份时，系统会按照SLA的定义执行一次复制或归档。</li>
    </ul>
   </div>
   <div class="section">
    <h4 class="sectiontitle">操作步骤</h4>
    <ol>
     <li><span>选择<span class="uicontrol" id="SAP_HANA_0025__zh-cn_topic_0000002199964685_uicontrol5648197104718">“<span id="SAP_HANA_0025__zh-cn_topic_0000002199964685_text264897164717">保护</span> &gt; <span id="SAP_HANA_0025__zh-cn_topic_0000002199964685_text1364812716472">应用</span> &gt; <span id="SAP_HANA_0025__zh-cn_topic_0000002199964685_text1079695192219">SAP HANA</span>”</span>。</span></li>
     <li><span>勾选要保护的数据库，单击<span class="uicontrol" id="SAP_HANA_0025__sap_hana_0018_zh-cn_topic_0000001792549224_uicontrol94926331910">“<span id="SAP_HANA_0025__sap_hana_0018_zh-cn_topic_0000001792549224_text74921333899">保护</span>”</span>。</span><p></p><p id="SAP_HANA_0025__sap_hana_0018_zh-cn_topic_0000001263775382_p1478765116562">您也可以勾选多个数据库进行批量保护。</p> <p></p></li>
     <li id="SAP_HANA_0025__li343674154015"><span>选择SLA。</span><p></p>
      <div class="p" id="SAP_HANA_0025__zh-cn_topic_0000002200146973_p16181740836">
       您也可以单击<span class="uicontrol" id="SAP_HANA_0025__zh-cn_topic_0000002200146973_uicontrol744210206420">“<span id="SAP_HANA_0025__zh-cn_topic_0000002200146973_text1873812341015">创建</span>”</span>，创建新的SLA。
       <div class="note" id="SAP_HANA_0025__zh-cn_topic_0000002200146973_note25947145710">
        <img src="public_sys-resources/note_3.0-zh-cn.png"><span class="notetitle"> </span>
        <div class="notebody">
         <p id="SAP_HANA_0025__zh-cn_topic_0000002200146973_p125947145711"><span id="SAP_HANA_0025__zh-cn_topic_0000002200146973_ph1413818422327">如果待保护的资源已设置WORM策略，为避免WORM策略冲突，请选择不包含WORM策略的SLA创建保护。</span></p>
        </div>
       </div>
      </div> <p></p></li>
     <li><span>单击<span class="uicontrol" id="SAP_HANA_0025__zh-cn_topic_0000002200146973_zh-cn_topic_0000001656691397_uicontrol471113581111">“确定”</span>。</span><p></p><p id="SAP_HANA_0025__zh-cn_topic_0000002200146973_zh-cn_topic_0000001656691397_p25041111535">如果当前系统时间已晚于SLA首次备份的开始时间，可以在弹出的对话框中选择立即执行手动备份或者根据SLA中设置的备份策略周期性自动执行备份。</p> <p></p></li>
     <li><strong>可选：</strong><span>执行手动备份。</span><p></p><p id="SAP_HANA_0025__p10154175216316">当需要立即执行一次备份任务时，可以执行以下操作进行手动备份。否则，可跳过本步骤。</p>
      <ol type="a">
       <li id="SAP_HANA_0025__li2154652133114">在需要备份的备份集所在行单击<span class="uicontrol" id="SAP_HANA_0025__uicontrol19154952143113">“<span id="SAP_HANA_0025__text141547528319">更多</span> &gt; <span id="SAP_HANA_0025__text1154105233120">手动备份</span>”</span>。
        <div class="note" id="SAP_HANA_0025__note4154185223116">
         <img src="public_sys-resources/note_3.0-zh-cn.png"><span class="notetitle"> </span>
         <div class="notebody">
          <p id="SAP_HANA_0025__zh-cn_topic_0000001607531736_p870125314544">支持选择多个资源批量进行手动备份。勾选多个资源，在页面左上角选择<span class="uicontrol" id="SAP_HANA_0025__zh-cn_topic_0000001607531736_uicontrol14182155715711">“<span id="SAP_HANA_0025__zh-cn_topic_0000001607531736_text662114113158">更多</span> &gt; <span id="SAP_HANA_0025__zh-cn_topic_0000001607531736_text1068159191519">手动备份</span>”</span>。</p>
         </div>
        </div></li>
       <li id="SAP_HANA_0025__li5644125184512">设置手动备份产生的副本名称。<p id="SAP_HANA_0025__p444210492470"><a name="SAP_HANA_0025__li5644125184512"></a><a name="li5644125184512"></a>如果您不设置，系统默认设置副本名称为：backup_时间戳。</p></li>
       <li>选择保护策略：<span>全量备份</span>、<span>差异备份</span>、<span>增量备份</span>或<span>日志备份</span>。
        <div class="note" id="SAP_HANA_0025__note1494616197487">
         <img src="public_sys-resources/note_3.0-zh-cn.png"><span class="notetitle"> </span>
         <div class="notebody">
          <p id="SAP_HANA_0025__zh-cn_topic_0000002200146973_p13522118194919"><span id="SAP_HANA_0025__zh-cn_topic_0000002200146973_ph19374310343">对于1.6.0及后续版本，如果选择的保护策略与关联的SLA中配置的保护策略不一致，则WORM配置不生效。</span></p>
         </div>
        </div></li>
       <li id="SAP_HANA_0025__li13154652153116">单击<span class="uicontrol" id="SAP_HANA_0025__uicontrol31547527313">“<span id="SAP_HANA_0025__text16296831195410">确定</span>”</span>。</li>
      </ol> <p></p></li>
    </ol>
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     <strong>父主题：</strong> <a href="SAP_HANA_0019.html">备份SAP HANA数据库（SAP HANA应用入口）（适用于1.6.0及后续版本）</a>
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